An organic sewage treatment device

Abstract

The utility model is applicable to the field of special equipment for organic sewage treatment, and provides an organic sewage treatment device, including: an ozone generating unit, a dissolving gas unit, an electrocatalytic filtering reaction tank and an output pump, wherein the liquid inlet of the dissolving gas unit is connected to the liquid outlet of the sewage pool storing organic sewage, the air inlet of the dissolving gas unit is connected to the air outlet of the ozone generating unit, the liquid outlet of the dissolving gas unit is connected to the liquid inlet of the electrocatalytic filtering reaction tank, the liquid outlet of the electrocatalytic filtering reaction tank is connected to the liquid inlet of the output pump, and the tank body of the electrocatalytic filtering reaction tank is provided with an electrode extending into the tank body, the electrode is electrically connected to the power supply unit, and a filter part is also provided in the tank body at a downstream position of the electrode. Based on the scheme provided by the utility model, organic sewage can be quickly oxidized and degraded, effectively avoiding the introduction of new soluble elements to make the water content complicated, greatly reducing the cost of treatment, and the treatment process has the advantages of simple operation and green and pollution-free.

Description

Technical Field

[0001] The utility model belongs to the technical field of special equipment for treating organic sewage, and in particular relates to an organic sewage treatment device. Background Art

[0002] Among the organic wastewater generated by industry, there are many acids and alkalis, which are often strong acids or strong alkalinities. This type of wastewater has poor biodegradability, high chroma, odor, and is toxic to microorganisms, making it difficult to treat with general biochemical methods. The conventional treatment method is to treat organic wastewater through compounding of chemicals. However, adding chemicals to sewage will produce a lot of new solid wastes, and the new soluble elements produced by the chemicals dissolving in water will also make the water content more complicated, and additional treatment equipment is required to remove the new soluble elements. In short, the existing organic wastewater treatment equipment has the problems of high cost investment and complex treatment process. Utility Model Content

[0003] In order to solve the above problems existing in the related technologies, the utility model provides an organic sewage treatment device. The technical problems to be solved by the utility model are achieved through the following technical solutions:

[0004] An organic sewage treatment device comprises: an ozone generating unit, a dissolving gas unit, an electrocatalytic filtering reaction tank and an output pump, wherein the liquid inlet of the dissolving gas unit is communicated with the liquid outlet of a sewage pool storing organic sewage, the air suction port of the dissolving gas unit is communicated with the air outlet of the ozone generating unit, the liquid outlet of the dissolving gas unit is communicated with the liquid inlet of the electrocatalytic filtering reaction tank, the liquid outlet of the electrocatalytic filtering reaction tank is communicated with the liquid inlet of the output pump, the tank body of the electrocatalytic filtering reaction tank is provided with an electrode extending into the inside of the tank body, the electrode is electrically connected to a power supply unit, and a filter portion is further provided in the tank body at a downstream position of the electrode.

[0005] In some embodiments, a demister is further provided on the tank body, an air inlet of the demister is connected to an air outlet on the tank body, and the air outlet of the demister outputs filtered gas.

[0006] In some embodiments, the electrode comprises a group of main electrodes, the group of main electrodes comprises a plurality of electrode rods, and the plurality of electrode rods are evenly distributed in the tank.

[0007] In some embodiments, the electrodes further include at least one group of spare electrodes, and the group of main electrodes and the at least one group of spare electrodes are arranged in sequence along the axial direction of the tank body.

[0008] In some embodiments, a fixing device is provided inside the tank body of the electrocatalytic filtering reaction tank, and one end of the electrode extending into the tank body is inserted into the fixing device.

[0009] In some embodiments, the electrocatalytic filtering reaction tank is a horizontal tank structure, and a water inlet pipe and a water outlet pipe are arranged in the tank body and perpendicular to the axis of the tank body, wherein the water inlet pipe is located between the electrode and the filter part, and the inlet of the water inlet pipe is close to the top of the inner side of the tank body, the outlet of the water inlet pipe is located at the bottom of the inner side of the tank body, and the outlet of the water inlet pipe is also connected to the liquid inlet of the filter part; the water outlet pipe is arranged between the filter part and the liquid outlet of the tank body, and the water inlet of the water outlet pipe is located at the top of the inner side of the tank body, the water inlet of the water outlet pipe is also connected to the liquid outlet of the filter part, and the water outlet of the water outlet pipe is close to the bottom of the inner side of the tank body.

[0010] In some embodiments, a first sewage outlet, a second sewage outlet and a third sewage outlet are provided at the bottom of the tank body, wherein the first sewage outlet, the second sewage outlet and the third sewage outlet are all provided at the bottom of the tank body; the first sewage outlet and the third sewage outlet are respectively provided at opposite sides of the filter part, and the second sewage outlet is provided directly below the filter part.

[0011] In some embodiments, the tank body is further provided with a first pressure sensor and a second pressure sensor, wherein the first pressure sensor is located between the electrode and the filter part, and the second pressure sensor is located between the filter part and the liquid outlet of the tank body.

[0012] In some embodiments, the device also includes a pipeline mixer, the air inlet of the pipeline mixer is connected to the air outlet of the ozone generating unit, the liquid inlet of the pipeline mixer is connected to the liquid outlet of the gas dissolving unit, and the liquid outlet of the pipeline mixer is connected to the liquid inlet of the electrocatalytic filtration reaction tank.

[0013] In some embodiments, the electrocatalytic filtration reaction tank further includes a liquid level meter.

[0014] The utility model has the following beneficial technical effects: by dissolving excess ozone into organic sewage, electrocatalyzing the mixed liquid of the two, and filtering out impurities in the liquid after electrocatalysis, the organic sewage can be quickly oxidized and degraded, and since ozone does not chemically react with the organic sewage during the treatment process, the problem of introducing new soluble elements to complicate the water content is effectively avoided, and no additional treatment equipment is required, which greatly reduces the investment in treatment costs, and the treatment process has the advantages of simple operation and being green and pollution-free.

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the composition of the organic sewage treatment device provided by the utility model;

[0017] Figure 2 It is a structural schematic diagram of the organic sewage treatment device provided by the utility model.

[0018] Description of Figure Numbers:

[0019] 1-dissolved air unit, 2-ozone generating unit, 3-pipeline mixer, 4-electrocatalytic filtration reaction tank, 5-power supply unit, 6-output pump, 21-air compressor, 22-air storage tank, 23-condenser, 24-dryer, 25-PSA oxygen generator, 26-ozone generator, 41-liquid inlet of electrocatalytic filtration reaction tank, 42-electrode, 43-filter part, 44-demister, 45-first sewage outlet, 46-second sewage outlet, 47-third sewage outlet, 48-liquid outlet of electrocatalytic filtration reaction tank, 49-liquid level meter. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with specific embodiments, but the implementation methods of the present invention are not limited thereto.

[0021] In view of the problems of high cost investment and complicated treatment process in existing organic sewage treatment devices, the utility model provides an organic sewage treatment device, which can quickly oxidize and degrade the organic sewage by dissolving excess ozone into the organic sewage, electrocatalyzing the mixed liquid of the two, and filtering out impurities in the liquid after electrocatalysis. In addition, since ozone does not chemically react with the organic sewage during the treatment process, the problem of introducing new soluble elements to complicate the water content is effectively avoided. There is no need to add additional treatment equipment, which greatly reduces the investment in treatment costs. In addition, the treatment process has the advantages of simple operation and being green and pollution-free.

[0022] See also Figure 1-2 As shown, Figure 1 It is a schematic diagram of the composition of the organic sewage treatment device provided by the utility model; Figure 2 It is a structural schematic diagram of the organic sewage treatment device provided by the utility model.

[0023] An organic sewage treatment device comprises: an ozone generating unit 2, a gas dissolving unit 1, an electrocatalytic filtering reaction tank 4 and an output pump 6, wherein the liquid inlet of the gas dissolving unit 1 is communicated with the liquid outlet of a sewage pool storing organic sewage, the air suction port of the gas dissolving unit 1 is communicated with the gas outlet of the ozone generating unit 2, the liquid outlet of the gas dissolving unit 1 is communicated with the liquid inlet 41 of the electrocatalytic filtering reaction tank 4, the liquid outlet of the electrocatalytic filtering reaction tank 4 is communicated with the liquid inlet of the output pump 6, the tank body of the electrocatalytic filtering reaction tank 4 is provided with an electrode 42 extending into the tank body, the electrode 42 is electrically connected to the power supply unit 5, and a filter part 43 is also provided in the tank body at a downstream position of the electrode 42.

[0024] Here, the ozone generating unit 2 includes: an air compressor 21, an air storage tank 22, a condenser 23, a dryer 24, a PSA oxygen generator 25 and an ozone generator 26. Among them, the air compressor 21, the air storage tank 22, the condenser 23, the dryer 24, the PSA oxygen generator 25 and the ozone generator 26 are connected in sequence. The air compressor 21 is an oil-free air compressor, and the oxygen purity produced by the PSA oxygen generator 25 is ≥90%, and the ozone concentration produced by the ozone generator 26 is ≥125mg / L. Here, all air storage tanks 22, condensers 23, dryers 24, and pipeline instrument bodies are made of 316 stainless steel to ensure that the compressed air produced is dry and pure.

[0025] Here, ozone oxidation involves gas-liquid contact, and a simple gas dissolving method will quickly precipitate large bubbles. In addition, the half-life of ozone in water does not exceed 30 minutes, so a gas dissolving unit 1 is used to accelerate the dissolution of ozone. The gas dissolving unit 1 is a gas-liquid mixing pump or a gas dissolving pump. The material of the gas-liquid mixing pump or the gas dissolving pump is 316 stainless steel and is equipped with an explosion-proof motor. Here, considering the design requirement that the liquid needs to stay in the electrocatalytic filtration reactor for 2h to 10h, the pump selection is calculated at 2 to 4 times the design flow rate. The organic sewage in the organic sewage pool is extracted by a gas-liquid mixing pump or a gas dissolving pump, and the ozone delivered by the ozone generating unit 2 and the organic sewage are dissolved in proportion by high-speed stirring of the blades at a pressure of 0.15MPa to 0.35MPa to form a micro-emulsified saturated solution.

[0026] Here, the power supply unit 5 is a three-phase self-coupling adjustable transformer, the working principle of the transformer is the arc furnace principle, the power is 10KVA~100KVA, the input voltage is 380V, and the adjustable voltage range of the transformer is 0~430V. The use of a three-phase self-coupling adjustable transformer is simpler than that of a rechargeable battery panel, and the energy output is more enhanced, which can effectively improve the electrocatalytic efficiency while saving electrode materials. In addition, large-particle activated carbon is filled in the filter part 43, and an anti-scouring filter is installed at the liquid inlet, liquid outlet, and bottom sewage outlet of the filter part 43.

[0027] The electrode 42 is powered by a three-phase self-coupling adjustable transformer, and the electrode 42 is used to electrocatalyze the microemulsified saturated solution. During the reaction, a portion of the ozone will decompose to produce a large amount of pure oxygen, and the organic matter and low-valent inorganic elements in the organic wastewater will be oxidized and decomposed under electrocatalysis. A portion of the microemulsified saturated solution will become water and carbon dioxide, and a portion will polymerize into sludge and complexes. The reaction is obviously exothermic, with a local internal combustion effect, and the excess electrical energy can be converted into thermal energy, which can also promote the enhanced redox reaction. The generated sludge can be discharged through the sewage outlet, and the generated carbon dioxide and oxygen can be discharged through the outlet of the electrocatalytic filtration reaction tank 4. The water and complex produced by electrolysis pass through the filter 43, and after filtering out the complex and other impurities in the water, they are output through the liquid outlet 48 of the tank body, and the liquid outlet 48 is an enlarged port for preventing vortexes.

[0028] Please continue to see Figure 1-2 As shown, in order to avoid insufficient ozone content in the dissolved gas unit, the device further includes a pipeline mixer 3, the air inlet of the pipeline mixer 3 is communicated with the air outlet of the ozone generating unit 2, the liquid inlet of the pipeline mixer 3 is communicated with the liquid outlet of the dissolved gas unit 1, and the liquid outlet of the pipeline mixer 3 is communicated with the liquid inlet of the electrocatalytic filtration reaction tank 4. Ozone is dissolved into the micro-emulsified saturated solution again through the pipeline mixer 3, so that the ozone concentration in the solution reaches a supersaturated state, thereby ensuring sufficient oxidation and degradation of organic matter and low-valent inorganic elements in the organic sewage.

[0029] Please continue to see Figure 1-2 As shown, the electrode 42 includes a group of main electrodes, and the group of main electrodes includes a plurality of electrode rods, and the plurality of electrode rods are evenly distributed in the tank body.

[0030] Here, the electrode rod is Stainless steel rod. In order to increase the action area of ​​the electrode field on the microemulsified saturated solution, a plurality of electrode rods are arranged perpendicular to the axis of the tank body. The plurality of electrode rods can be distributed in a polygonal shape or staggered front and back; the polygon can be an equilateral triangle, a quadrilateral, a trapezoid, a prism, etc. The top of the end of the plurality of electrode rods exposed from the tank body is connected to the power supply unit 5 using a wiring nose, or the power supply unit 5 and the electrode rods can be directly welded, and in order to fix the distribution shape of the plurality of electrode rods and prevent water flow from impacting the electrode rods, the plurality of electrode rods are reinforced with insulating resin. Specifically, the length of the electrode rod extending into the interior of the tank body is 1.5 times the spacing between the plurality of electrode rods.

[0031] Here, in order to further fix and avoid electric field force disturbance, a fixing device is provided inside the tank body of the electrocatalytic filtering reaction tank 4, and one end of the electrode 42 extending into the tank body is inserted into the fixing device. The fixing device may be a resin disc.

[0032] Here, the electrode 42 also includes at least one set of spare electrodes, and the set of main electrodes and the at least one set of spare electrodes are sequentially arranged along the axis direction of the tank. The parallel spacing between the two sets of electrodes is 10 to 20 cm. The main electrode and the spare electrode are each connected to a power supply unit.

[0033] Please continue to see Figure 1-2 As shown, the electrocatalytic filtering reaction tank 4 is a horizontal tank structure, and a water inlet pipe and a water outlet pipe are arranged in the tank body and perpendicular to the axis of the tank body, wherein the water inlet pipe is located between the electrode 42 and the filter part 43, and the inlet of the water inlet pipe is close to the top of the inner side of the tank body, the outlet of the water inlet pipe is located at the bottom of the inner side of the tank body, and the outlet of the water inlet pipe is connected with the liquid inlet of the filter part 43; the water outlet pipe is arranged between the filter part 43 and the liquid outlet 48 of the tank body, and the water inlet of the water outlet pipe is located at the top of the inner side of the tank body, the water inlet of the water outlet pipe is connected with the liquid outlet of the filter part 43, and the water outlet of the water outlet pipe is located at the bottom of the inner side of the tank body.

[0034] Here, the water inlet of the water inlet pipe is about 10 cm to 20 cm away from the inner top of the tank body. The inside of the tank body is divided into two parts by the water inlet pipe. In the front half of the tank body, the liquid overflows into the water inlet pipe to precipitate the sludge and complex generated by electrolysis, and then flows into the filter part 43 through the water inlet pipe, and then flows out from the highest point of the filter part 43, that is, the water outlet pipe connected to the liquid outlet of the filter part 43.

[0035] Here, in order to discharge the precipitated sludge and complexes, the bottom of the tank is provided with a first drain port 45, a second drain port 46 and a third drain port 47, wherein the first drain port 45, the second drain port 46 and the third drain port 47 are all arranged at the bottom of the tank; the first drain port 45 and the third drain port 47 are respectively arranged at opposite sides of the filter 43, and the second drain port 46 is arranged directly below the filter 43. In addition, in order to avoid blockage of sludge and complexes, each drain port is connected to high-pressure water, and is opened regularly or when there are solid impurities that cannot be discharged from the drain port, so as to flush out the blocked solid impurities.

[0036] Here, the tank body is further provided with a first pressure sensor and a second pressure sensor, the first pressure sensor is located between the electrode 42 and the filter part 43, and the second pressure sensor is located between the filter part 43 and the liquid outlet 48 of the tank body. By comparing the pressure value generated in real time by the first pressure sensor or the second pressure sensor with the preset pressure value, the pressure on the opposite sides of the current filter part can be determined to determine whether the filter part is working normally.

[0037] Here, in order to control the balance of liquid inflow and outflow in the tank, the electrocatalytic filtration reaction tank 4 also includes a liquid level gauge 49, which is arranged on one side of the tank along the axial direction of the tank. The liquid level gauge 49 is a magnetic float liquid level gauge made of 316 stainless steel. The magnetic float liquid level gauge can detect the liquid level value in the tank in real time and adjust the electric valve after the output pump 6 by remote transmission signal.

[0038] Please continue to see Figure 1-2 As shown, in the organic sewage treatment device provided by the utility model, a demister 44 is further provided on the tank body, the air inlet of the demister 44 is connected with the air outlet on the tank body, and the air outlet of the demister 44 outputs filtered gas.

[0039] Here, the demister 44 is filled with 250Y corrugated packing to filter out impurities and moisture in the gas. The filtered gas consists of oxygen and carbon dioxide, which can be directly discharged to the outside without the need for a supporting flare system for further combustion, which has the advantage of saving cost investment.

[0040] Here, in order to facilitate replacement and maintenance of the electrode 42 and the filter 43, the tank body is provided with a plurality of inspection manholes. Specifically, the electrode 42 is encapsulated in the tank body through the first inspection manhole, and the filter 43 is provided with inspection manholes above and below, and the second sewage outlet 46 is provided on the inspection manhole, and the gas outlet of the tank body is the inspection manhole, and the demisting filler 44 is provided on the inspection manhole.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] The above description shows and describes several preferred embodiments of the utility model, but as before, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept of this article through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. An organic sewage treatment device, characterized in that: include: Ozone generating unit, gas dissolving unit, electrocatalytic filtration reaction tank and output pump, among which, The liquid inlet of the gas dissolving unit is communicated with the liquid outlet of the sewage pool storing organic sewage, the air intake of the gas dissolving unit is communicated with the air outlet of the ozone generating unit, the liquid outlet of the gas dissolving unit is communicated with the liquid inlet of the electrocatalytic filtering reaction tank, the liquid outlet of the electrocatalytic filtering reaction tank is communicated with the liquid inlet of the output pump, the tank body of the electrocatalytic filtering reaction tank is provided with an electrode extending into the inside of the tank body, the electrode is electrically connected to the power supply unit, and a filtering part is also provided in the tank body at a downstream position of the electrode.

2. The organic wastewater treatment device according to claim 1, characterized in that: The tank body is also provided with a demister, the air inlet of the demister is communicated with the air outlet on the tank body, and the air outlet of the demister outputs filtered gas.

3. The organic wastewater treatment device according to claim 1, characterized in that: The electrodes include a group of main electrodes, and the group of main electrodes includes a plurality of electrode rods, and the plurality of electrode rods are evenly distributed in the tank body.

4. The organic wastewater treatment device according to claim 3, characterized in that: The electrodes further include at least one group of spare electrodes, and the group of main electrodes and the at least one group of spare electrodes are arranged in sequence along the axial direction of the tank body.

5. The organic wastewater treatment device according to claim 1, characterized in that: A fixing device is arranged inside the tank body of the electrocatalytic filtering reaction tank, and one end of the electrode extending into the tank body is inserted into the fixing device.

6. The organic wastewater treatment device according to claim 1, characterized in that: The electrocatalytic filtering reaction tank is a horizontal tank structure, and a water inlet pipe and a water outlet pipe are arranged inside the tank body and perpendicular to the axis of the tank body, wherein: The water inlet pipe is located between the electrode and the filter part, and the inlet of the water inlet pipe is close to the top of the inner side of the tank body, the outlet of the water inlet pipe is located at the bottom of the inner side of the tank body, and the outlet of the water inlet pipe is also connected to the liquid inlet of the filter part; The water outlet pipe is arranged between the filter part and the liquid outlet of the tank body, and the water inlet of the water outlet pipe is located at the top of the inner side of the tank body. The water inlet of the water outlet pipe is also connected with the liquid outlet of the filter part, and the water outlet of the water outlet pipe is close to the bottom of the inner side of the tank body.

7. The organic wastewater treatment device according to claim 1, characterized in that: The bottom of the tank is provided with a first sewage outlet, a second sewage outlet and a third sewage outlet, wherein: The first sewage outlet, the second sewage outlet and the third sewage outlet are all arranged at the bottom of the tank body; The first sewage outlet and the third sewage outlet are respectively arranged at opposite sides of the filter part, and the second sewage outlet is arranged directly below the filter part.

8. The organic wastewater treatment device according to claim 1, characterized in that: The tank body is further provided with a first pressure sensor and a second pressure sensor, wherein the first pressure sensor is located between the electrode and the filter part, and the second pressure sensor is located between the filter part and the liquid outlet of the tank body.

9. The organic wastewater treatment device according to claim 1, characterized in that: The device also includes a pipeline mixer, the air inlet of the pipeline mixer is connected to the air outlet of the ozone generating unit, the liquid inlet of the pipeline mixer is connected to the liquid outlet of the gas dissolving unit, and the liquid outlet of the pipeline mixer is connected to the liquid inlet of the electrocatalytic filtering reaction tank.

10. The organic wastewater treatment device according to claim 1, characterized in that: The electrocatalytic filtering reaction tank also includes a liquid level meter.

Images